Question about BMW Cars & Trucks
2003 bmw z4 3.0 reset service eng soon light
With ignition off press and hold left hand instrument panel button switch ignition to 1st position reset should show on the inst panel , with button still depressed the reset should flash release and then press this should then give you new service schedule and mileage switch ignition off.
Posted on Feb 10, 2019
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Posted on Jan 02, 2017
SOURCE: 'service engine soon' light
without using the scan tool you can do it by disconnected the the battery for ( 24 h) to reset it or to ( 5 m) to reset the service engine light but the fault sty in the memory
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Posted on Jul 10, 2008
The service engine light you refer to is telling you you have a problem with the computerrized engine control of the car.When the light comes the computer stores a numerical code that can be retrieved with a scan tool or code reader.If you are not experienced with diagnostics you need to take the car to a mechanic,because sometimes a code can fool you and you can change a good part.An example of this would be reading a code that the oxygen sensor is reading a lean condition setting the light on. but the real issue is a bad fuel pump not supplying enough fuel to the engine. On the code alone you would be inclined to change the sensor when it was not the problem.
Posted on Nov 26, 2008
It could be any number of things you will nee the codes read to be sure. If yor mileage is near one of the recommended services points 50,000, 100,000 or 150,000 this could be the cause. Again you won't know or sure ill codes are read Good Luck With This
Posted on Jul 09, 2009
My service engine light was caused by a cloged passage from my EGR valve. Mine is a 3.1 with fuel injection 2003. All I needed to do was pull the two bolts over the intake plenum and remove the vacuum connection to the PCV valve. Then clean out the EGR port just below the vacuum connection in the throttle port. I would remove the rubber intake to vacuum it out. The carbon was like rock in there. Service engine light cleared on its own.
Posted on Mar 10, 2010
take the negitive battery cable off for about five minutes or so and plug it back in and that should fix ur problem
Posted on Jul 02, 2010
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